unsigned LogCommandParser::Subscribe(SystemAddress systemAddress, const char *channelName)
{
unsigned i;
unsigned channelIndex=(unsigned)-1;
if (channelName)
{
channelIndex = GetChannelIndexFromName(channelName);
if (channelIndex==(unsigned)-1)
return channelIndex;
}
for (i=0; i < remoteUsers.Size(); i++)
{
if (remoteUsers[i].systemAddress==systemAddress)
{
if (channelName)
remoteUsers[i].channels|=1<<channelIndex; // Set this bit for an existing user
else
remoteUsers[i].channels=0xFFFF;
return channelIndex;
}
}
// Make a new user
SystemAddressAndChannel newUser;
newUser.systemAddress = systemAddress;
if (channelName)
newUser.channels=1<<channelIndex;
else
newUser.channels=0xFFFF;
remoteUsers.Insert(newUser);
return channelIndex;
}
unsigned LogCommandParser::Unsubscribe(SystemAddress systemAddress, const char *channelName)
{
unsigned i;
for (i=0; i < remoteUsers.Size(); i++)
{
if (remoteUsers[i].systemAddress==systemAddress)
{
if (channelName==0)
{
// Unsubscribe from all and delete this user.
remoteUsers[i]=remoteUsers[remoteUsers.Size()-1];
remoteUsers.RemoveFromEnd();
return 0;
}
else
{
unsigned channelIndex;
channelIndex = GetChannelIndexFromName(channelName);
if (channelIndex!=(unsigned)-1)
{
remoteUsers[i].channels&=0xFFFF ^ (1<<channelIndex); // Unset this bit
}
return channelIndex;
}
}
}
return (unsigned)-1;
}
unsigned LogCommandParser::Subscribe(PlayerID playerId, const char *channelName)
{
unsigned i;
unsigned channelIndex=(unsigned)-1;
if (channelName)
{
channelIndex = GetChannelIndexFromName(channelName);
if (channelIndex==(unsigned)-1)
return channelIndex;
}
for (i=0; i < remoteUsers.Size(); i++)
{
if (remoteUsers[i].playerId==playerId)
{
if (channelName)
remoteUsers[i].channels|=1<<channelIndex; // Set this bit for an existing user
else
remoteUsers[i].channels=0xFFFF;
return channelIndex;
}
}
// Make a new user
PlayerIDAndChannel newUser;
newUser.playerId = playerId;
if (channelName)
newUser.channels=1<<channelIndex;
else
newUser.channels=0xFFFF;
remoteUsers.Insert(newUser);
return channelIndex;
}
unsigned LogCommandParser::Unsubscribe(PlayerID playerId, const char *channelName)
{
unsigned i;
for (i=0; i < remoteUsers.Size(); i++)
{
if (remoteUsers[i].playerId==playerId)
{
if (channelName==0)
{
// Unsubscribe from all and delete this user.
remoteUsers[i]=remoteUsers[remoteUsers.Size()-1];
remoteUsers.Del();
return 0;
}
else
{
unsigned channelIndex;
channelIndex = GetChannelIndexFromName(channelName);
if (channelIndex!=(unsigned)-1)
{
remoteUsers[i].channels&=0xFFFF ^ (1<<channelIndex); // Unset this bit
}
return channelIndex;
}
}
}
return (unsigned)-1;
}
void LogCommandParser::WriteLog(const char *channelName, const char *format, ...)
{
if (channelName==0 || format==0)
return;
unsigned channelIndex;
channelIndex = GetChannelIndexFromName(channelName);
if (channelIndex==(unsigned)-1)
{
AddChannel(channelName);
}
char text[REMOTE_MAX_TEXT_INPUT];
va_list ap;
va_start(ap, format);
_vsnprintf(text, REMOTE_MAX_TEXT_INPUT, format, ap);
va_end(ap);
text[REMOTE_MAX_TEXT_INPUT-1]=0;
// Make sure that text ends in \r\n
int textLen;
textLen=(int)strlen(text);
if (textLen==0)
return;
if (text[textLen-1]=='\n')
{
text[textLen-1]=0;
}
if (textLen < REMOTE_MAX_TEXT_INPUT-4)
strcat(text, "\r\n");
else
{
text[textLen-3]='\r';
text[textLen-2]='\n';
text[textLen-1]=0;
}
// For each user that subscribes to this channel, send to them.
unsigned i;
for (i=0; i < remoteUsers.Size(); i++)
{
if (remoteUsers[i].channels & (1 << channelIndex))
{
trans->Send(remoteUsers[i].systemAddress, text);
}
}
}
void LogCommandParser::AddChannel(const char *channelName)
{
unsigned channelIndex;
channelIndex = GetChannelIndexFromName(channelName);
// Each channel can only be added once.
assert(channelIndex==(unsigned)-1);
unsigned i;
for (i=0; i < 32; i++)
{
if (channelNames[i]==0)
{
// Assuming a persistent static string.
channelNames[i]=channelName;
return;
}
}
// No more available channels - max 32 with this implementation where I save subscribed channels with bit operations
assert(0);
}
